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Product Overview
The Honeywell FS-TPSU-2430 functions as an isolated DC/DC power converter for Honeywell Safety Manager and Fail-Safe Controller (FSC) systems. This module converts a 24 V DC input into a stable 30 V DC / 1 A output for field termination assemblies (FTAs) . Additionally, the FS-TPSU-2430 provides isolated power to analog input modules such as the TSAI-1620m and TSHART-1620m .
Technical Specifications
The FS-TPSU-2430 accepts a nominal 24 V DC input with a permissible range of 18–36 V DC . This module delivers a regulated 30 V DC output at 1 A with short-circuit protection and a ripple of less than 0.1 Vrms . Furthermore, the unit achieves over 75% efficiency and includes dual overvoltage protection for SIL3 compliance .
| Parameter | Specification |
|---|---|
| Manufacturer | Honeywell |
| Product Type | DC/DC Power Supply Converter |
| Nominal Input Voltage | 24 V DC |
| Input Voltage Range | 18–36 V DC |
| Input Inrush Current | ≤ 4 A |
| Output Voltage | 30 V DC ± 0.25 V |
| Output Current | 1 A (short-circuit proof) |
| Output Ripple | < 0.1 V RMS (0–30 MHz) |
| Efficiency | > 75% |
| Isolation Voltage | 2000 V AC (input to output) |
| Switching Frequency | > 25 kHz |
| Protection | Overvoltage, short-circuit, undervoltage |
| LED Indicators | Yes (output voltage status) |
| Alarm Output | Read-back relay contact |
| Mounting | DIN rail (TS32/TS35) |
| Dimensions (L x W x H) | 150 x 70 x 62.3 mm |
| Weight | Approx. 0.35 kg |
| Operating Temperature | -5°C to +70°C |
| Storage Temperature | -40°C to +85°C |
| Certifications | CE, TUV, UL, CSA, FM, SIL3 |
| Origin | USA |
Key Design Features
The FS-TPSU-2430 provides galvanic isolation between input, output, and relay contacts, effectively eliminating ground loop issues . The module includes comprehensive monitoring with an LED that illuminates when the output voltage is OK . Moreover, the read-back relay contact closes when the output voltage falls within the acceptable range, enabling remote status reporting . The dual overvoltage protection and undervoltage detection ensure fail-safe operation in safety-critical environments. The compact 150 x 70 x 62.3 mm housing saves valuable DIN rail space for dense installations .
Application and Integration
The FS-TPSU-2430 integrates seamlessly with Honeywell FSC and Safety Manager systems in SIL3-rated safety instrumented systems (SIS) . System engineers commonly deploy this module in emergency shutdown (ESD) systems, fire & gas detection, and burner management installations . Consequently, it powers field termination assemblies for analog input modules like the TSAI-1620m and TSHART-1620m in oil and gas, chemical processing, and power generation facilities . Users should fit a 3.15 A, 5 x 20 mm fuse (Schurter PN: 0001.2509) on the input side for proper protection .